Used on b757 aircraft. 1.000" hole diameter self extinguishing without fillers; fits sheet structure thickness 0.201 to 0.250 inch; temperature minus 65.0 to plus 300.0 degrees f. 2 hour service life, at minus 65.0 to plus 250.0 degrees f. 12 hour service life, at MI65.0 to plus 200.0 degrees f. 60 hour service life; used on panel installation-nose wheel well forward top